Means for mounting insulator pins



Feb. 3. 1925.

c. s; COTTON MEANS FOR MOUNTING INSULATOR PINS Filed May 22, 1919 Patented Feb. 3, 1925.

UNITED STATES CHARLES COTTON, 0F GRAFTON, PENNSYLVANIA.

MEANS FOR MOUNTING INSULATOR PINS,

Application filed May 22, 1819. Serial No. 298,878.

T 0 aZZ whom it may concern.

Be it known that I, CHARLES S. COTTON, a citizen of the United States, residing in Grafton, county of Allegheny, and State of Pennsylvania, have invented an Improvement in Means for Mounting Insulator Pins, of which the following is a specification.

This invention relates to the mounting of insulators and pins on cross arms of poles and the like for supporting wires, etc., and has for an object to provide a simple, cheap and efficient means for holding an insulator pin in its proper position on the cross arm.

Another object of the invention is to provide a bracket for holding an insulator pin in its proper position on a cross-arm or the like without the use of bolts or rivets.

Another object of the invention is to pro vide an insulator pin bracket which engages a cross arm and is adjustable to the thick ness thereof.

A. further object of the invention is to provide an insulator pin bracket which is adjustably secured to a cross arm.

A still further object of the invention is to provide an insulator pin bracket which is held in its proper position on a metallic cross arm or the like without the use of bolts or rivets.

These and other objects will be apparent from the following description.

Referring now to the drawings in which like reference characters refer to like parts, Fig. 1 is a plan view of a bracket,the cross arm being shown in dot and dash lines and the insulator pin being omitted, to more clearly illustrate the bracket; Fig. 2 is a side elevation view of a bracket, the cross arm and insulator pin being shown in full lines; Figs. '3 and 4, 5 and'G, 7'and 8' and '9 and 10 respectively are similar views of modifications of the invention. Figs. 11 and 12 illustrate a bracket applied to a cross arm of T form and Fig. 13 illustrates types of bracket applied to cross arm of channel form. 3 3

Referring now in detail to the drawings, the reference character 1 indicates a cross arm which may beof any suitable form in cross section, but as illustrated is preferably of angle form and is adapted to'be attached to a pole or other suitable support in such a manner that flange 2 thereof will be disposed horizontally and the'flange 3 will be disposed vertically. The flange 2 is preferably provided with an opening through which an insulator pin 4 is adapted to pass, such pin being provided with a shoulder 5 which is adapted to engage the upper surface of the flange 2 to prevent excessive downward movement of the pin. This pin at its lower end portion is connected with a bracket 6 which is adapted to engage the flange 3 of the cross arm. The bracket 6 is preferably provided with a horizontally disposed base portion 7 which is provided with an opening 8 through which the lower end portion of the pin 4 is adapted to pass. The portion of the pin which projects below the bracket 6 is preferably screw threaded and is provided with a nut 9 which when tight ened is adapted to engage the underside of the base portion 7. This bracketis also provided with a web portion 10 which extends upwardly from the base portion 7 and for a portion of its length is adapted to engage the inner surface of the flange 3 of the cross arm. The bracket is further provided with lugs 11 which extend upwardly and are adapted to engage the outer surface of the flange 3 of the cross arm. 10 for a portion of its length is offset, as indicated by the reference character 12, so that when the bracket is applied to the cross arm there will be a space provided between the inner surface of the flange 3 of the cross arm and the web 10 of the bracket for the reception of a member 13 which is preferably wedge shape, such member being adapted to engage the flange 3 and the web 10. The web 10 and lugs 11 are spaced apart a suflicient distance to permit of the application of the bracket to a cross arm of maximum thickness. hen the bracket is applied to a cross arm of minimum thickness the member 13 is adapted to compensate for such'reduction in the thickness of'the cross arm.

In this application to a cross arm of minimum thickness there may be a space between the flange 3 of the cross arm and the web 10 of the bracket which space may be taken up by flat plates (not shown) or any other suitable means. When the bracket is applied to a cross arm of maximum thickness as illus trated in Figs. 1 and 2 the lower edge of the flange 3 of the cross arm contacts" with the base port-ion 7 of the bracket, while the web 10 and lugs 11 engage the inner and outer The web port-ion making a tight connection between the bracket and the cross arm which will prevent any accidental movement of the bracket in a direction longitudinally of the cross arm. It will here be noted that the bracket is held in position without the use of bolts or rivets 7 thus obviating the punching of holes inthe flange 3 of the cross arm for. such fastening devices. In Figs. 1 and 2 the bracket 6 is provided with a projection 14 which is adapted to extend into a perforation in the flange 3 of the cross arm and when in such perforationwill prevent any accidental tilting or movement of the bracket in a direction longitudinally of the cross arm. In the bracket illustrated in Figs. 3' and 4 this projection has been omitted.

\ InFigs. 5 and 6 a modification of the invention has been illustrated in which the base portion 7, between the web 10 and lugs 11, is provided with'openings 15 for the reception of members 16 which are preferably wedge shaped. When this bracket is applied to a cross arm of maximum thickness the web 10, which is preferably straight throughout its length, will engage the inner surface of the flange 3 and the lugs 11 will engage the outer surface of such flange. To hold the bracket in its proper position on the cross arm against accidental movement the members 16 are driven downwardly through the openings 15 into close contact with the outer surface of the flange 3. IVhe'n the bracket is applied to a cross arm of minimum thickness the members 16 may be driven downwardly a sufficient distance into close contact with the outer surface of .the flange 3 and will compensate for the reduction in the thickness of the cross arm.

In Figs. 7 and 8 as well as in Figs.'9 and 10 other modifications of the invention have been illustrated in which no wedge shaped members are used to compensate for any variations in the thickness of the cross arm, such adjustment when necessary being made possible by the use of any suitable, filler which may be inserted between the web 10 and the inner surface of'the flange 3. In Figs. 9 and 10 the bracket is provided with a projection 14 which is substantially the same as, the one described hereinbefore in.

connection with Figs. 1 and 2 and needs no further description here.

In Fig. 11 the bracket of Figs. 7 and 8 has been shown applied'to a cross arm of'T section, the flanges 17 of which are disposed vertically and the leg 18 of which is disposed. horizontally. The insulator pin passes through an opening formed in the leg 18 of this cross arm and the lower end portion of such pin is connected with the bracket in the manner hereinbefore described in connection with the other figures of the drawings and the web 10 and lugs 11 of the bracket engage opposite sides of the downwardly depending flange 17 of the cross arm. 7

In Fig. 12 the bracket of Figs. 7 and, 8 has been shown applied to the upwardly extending flange 17 of the T shaped cross arm. In this application the insulator pin passes through the opening in the base portion 7 of the bracket and the shoulder on such pin engages the base portion 7. The lower end portion of the pin passes through a perforation formed in the leg 18 of the cross arm and the portion of the pin which extends below such leg is provided with a nut or other suitable tightening device which engages the underside of the leg.

Referring now to Fig. 13 of the drawings 19 indicates a cross arm of'chaiinel form and 20 the insulator pin brackets. Each of these brackets is provided with a base portion 21 one end of which is providedrwith a hook shaped portion 22 which is adapted to engage one of the flanges of the cross arm. The other end'of each base portion 21 is provided with a perforation through which the insulator pin is adapted to pass. This bracket is also provided with a web 23 which is adapted to engage the web of the ing the upper bracket and the nut 9 on the pinengaging the lower bracket. It will here be noted that when the nut is tightened the brackets will be held against any accidental movement relative to the cross arm.

From the foregoing description it will be apparent that the brackets may be readily adjusted to cross arms of varying thicknesses and further that the brackets may be adjusted to different positions on the cross arm.

It will be understood by those skilled in. the art to which this invention appertains that many changes may be made in the form and combination of parts without departing from the spirit and scope of the invention.

Having thus described the invention what 7 I claim as new and desire to secure by Letters Patent is V.

1. The combination with a cross arm having a vertically disposed flange and a. horizontally disposed flange, of abracket 'provided with means to engage said 'verti cally disposed flange, an insulator pin ex tending through said horizontally disposed flange and bracket and means on said pin adapted to engage said bracket to hold said bracket in engagement with said Vertically disposed flange.

2. The combination with a cross-arm having a horizontally disposed flange and a vertically disposed flange, of a bracket en gaging said vertically disposed flange and having a horizontally disposed portion below said horizontally disposed flange, an insulator pin extending through said horizontally disposed flange and through the horizontally disposed portion of said brack et and means on said pin for holding said bracket in engagement with sa d vertically disposed flange.

3. The combination with a cross arm of a bracket mounted thereon, said bracket comprising spaced portions adapted to receive a portion of said arm between them, and also comprising a web portion extending beyond said spaced portions, and an insulator pin mounted on said arm and the said web port-ion, and means associated with said pin for holding said bracket on said arm.

L. The combination with a cross-arm, of a bracket mounted thereon, said bracket comprising a horizontally disposed web, spaced portions adjacent one end of said web adapted to receive said arm, an insulator pin mounted on said arm and web, means on said pin for holding said bracket on said arm and means between said spaced portions for engaging cross-arms the last mentioned means being adjustable to crossarms of varying thicknesses.

5. The combination with a flanged crossarm of a bracket having a horizontally disposed web and a vertically disposed web, and lugs on said horizontally disposed web spaced away from said vertically disposed web, said lugs and vertically disposed web being adapted to engage said arm, an insulator pin extending through said horizontally disposed web, and means on said pin adapted to engage said cross arm and horizontally disposed web to hold said bracket in engagement with said arm.

6. The combination with a cross-arm having a Vertically disposed flange and a horizontally disposed flange, of a bracket ha ing a horizontally disposed web and spaced portions, said spaced portions being adapted to engage opposite sides of said vertically disposed flange, an insulator pin extending through and engaging said horizontally disposed flange and web for holding said brackets in engagement with said crossarm.

7. The combination with a cross-arm having a pair of flanges disposed at an angle to each other, of an insulator bracket having spaced portions adapted to engage opposite sides of one of said flanges and a web extending beneath the other of said flanges. and an insulator pin extending between and secured to the last mentioned flange and said web. 7

In testimony whereof I alfix my signature in the presence of two witnesses.

CHARLES S. COTTON. Witnesses H. M. BENDER, FRANK E. MILLER. 

